About
Barney Cumberland is a Partner in the Tax department at Simpson Grierson in New Zealand with close to 30 years' experience across domestic and international tax law, advising on transactional work, cross-border matters, tax disputes, and trust/asset planning for high net worth individuals and families. He is recognised in Asia Pacific Legal 500 Tax 2026 (Hall of Fame) and Chambers Asia‑Pacific Tax 2026 as a Leading Lawyer.
Practice areas
TaxInternational TaxTax LitigationPrivate WealthTrusts & Estates
Office
Expertise
Cross-border transactionsTax disputes and litigationTrusts and asset planningHigh net worth/private clientsPublic sectorNot-for-profit sector
Education
- BA
- LLB (Hons)